Machine for working wheel, roller, and like blanks



Aug. 29, 1933. V J. ROSENBAUM 1,924,962

MACHINE FOR WORKING WHEEL, ROLLER, AND LIKE BLANKS Filed Jan. 10, 1931 UNITED STATES PATENT orrlcs 'MACHINE FOR WORKING WHEEL, ROLLER,

AND LIKE BLANKS Y Josef Rosenbaum, Gelsenkirchen, Germany Application January 10, and in Germany 7 Claims.

The present invention relates to machines for].

finishing previously shaped wheel, roller and like blanks. Machines of this type, in which a series of tools come into operation successively and act on various parts of the blanks, are already known. Usually the wheel disc is either rolled out of a. round billet in several operations and by means of several rolling or milling mechanisms or the wheels which have been previously rolled are.

worked by a special working machine.

In all these known methods of manufacture a complete series of work devices and tools are necessary and consequently a series of operations also, whereby the cost of manufacture is considerably increased.

In order to eliminate these disadvantages according to the present invention a forging press is combined in one mechanism with a rolling arrangement and with tools for finishing the hub and its bore, .in such a way that the blanks can be entirely completed in one operation. In this manner the wheel disc is shaped by pressure, the outer rim is shaped by rolling whilst the hub is finally formed simultaneously with making the hub opening above in the same operation.

The hub bore can be made in the combined pressing and rolling machine of the present invention simultaneously with moderately shaping the hub in addition to a final finishing shaping,

of the wheel disc by pressure similarly'to the process in forging machines'by the arrangement of several pressure cylinders. operating independently of each other. This work has never been possible with the machines hitherto known.

' The accompanyingdrawing illustrates one form of construction of the invention by way of ex-, ample.

The article'R to be worked is inserted between a pair of gripping jaws or binding checks (2. and a The gripping jaw a which serves as a counter jaw and therefore cannot be displaced axially is driven in suitable manner from a driving shaft through the intermediary of clutches. The actuation of the fastening jaw or pressure jaw a takes place according to the drawing in the following way. A gear 1, driven from some source of power drives the gear 3 which is connected with a driving spindle 2. The spindle 2 is carried in bearings 4 and 5 and is provided with a clutch 6 of any desired kind, for instance with a spring clutch. The jaw a is supported on the spindle 2 rigidly. If the clutch 6 is thrown in by means of the clutch lever 7 it will drive the lower part ofthe spindle and the upper half of the spindle 2 together with the jaw a The jaw a acts as a pressure jaw.

1931, Serial No. 507,950, January 17, 1930 The lower part of the spindle is normally driven as long as the source of power is in operation. The. pressing of this check a is effected by a suitable pressure means, for example by hydraulic or pneumatic cylinder pressure. In the present case the spindle ll of the jaw a terminates in a plunger k which is'guided in the cylinder Z during the pressing operation. The jaw 'a rotates together with the jaw a1 and for this purpose roller bearings 11 are interposed between the spindle 10 and the plunger is so that the plunger does not rotate.

The fitted blank R is profiled by the positively pressed profile rollers b, whereby a smooth running surface is obtained thereby strengthening and compressing the material of the article.

A fixed boring tool or spindle c is also driven in the direction of the arrow by hydraulic or pneumatic cylinder pressure, during the rolling process, so that the work article is bored exactly centrally. In the drawing a pressure piston for the boring tool is provided in the cylinder 2 By suitable stopping devices as for'instance by the switches 8 in the housing or" the pressure cylinder and permitting solely displacement of the spindle c in axial direction any rotation of this spindle 0 may be prevented.

The working, for example planing of the front surface of the hub can beeffected simultaneously with the boring operation, since the boring spindle is provided on its end with a corresponding cutter head d. In order to be able to work the two front surfaces of the hub in one and the same process, the driving head can be hollow and be provided with a fixed boring or milling cutter.

For instance as shown in the drawing in dotted lines a milling tool al may terminate in a plunger k which is located in a pressure cylinder 2 The spindle 2 also may be connected with the plunger k so that then the hopper may be pierced from both sides at the same time or successively.

The griping jaws, profile rollers and the tool for working the hub can be exchangeable in order to be able to select these according to the work article to be shaped.

The operation takes place as follows:

When the pressure jaw a is raised the work piece R is positioned on the jaw a The jaw a is then set on the work piece and the clutch 6 is rendered operative by means of the lever 8. Owing to the pressure of the jaw the work piece which has been pretreated in a forging machine is now, furthermore, treated and deformed in accordance with the shape of the jaws a and a During the rotation of the jaws a and a the spindles c and 0 may be provided with ordinary punches d and (1 so that then the piercing and the final shaping of the hub may be eifected from both sides simultaneously. If, however, the wheel body is to be smoothed up at both end surfaces of the hub simultaneously the two spindles are locked by means of switches and then in place of providing them with punches they are provided with milling tools. When the jaws are rotated together with the wheel body the end face may be finished at the same time by these tools. The rim of the wheel also is finished by means of the rollers b which have a suitable control and which are forcibly pressed against the blank by means of pressure cylinders. After this rolling operation has been completed the rollers b are withdrawn. The upper jaw a and the punch z are returned to a neutral position and the finished wheel may then be lifted to release the wheel from the lower jaw and the lower punch may be stripped from the wheel.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

l. A combined pressingand rolling mill for finishing preformed blanks of wheels, rollers, pulleys and the like, comprising a pair of pressing jaws having means whereby they are mount ed for rotation and means whereby one jaw is movable toward and from the other, said jaws being shaped on their opposing sides to correspond to the shape of the work piece; pressure rollers arranged laterally of the pressing jaws formed to correspond to the shape of the rim of the wheel or other work piece, means whereby said pressure rollers are adapted to be moved toward and from the pressing jaws to impart therequired shape to the rim of the work piece and means for finishing the shape of the hub of the work piece for boring the same, said means extending through the centers of the pressing jaws and being arranged to operate during the same working cycle as the pressing jaws and the pressure rollers.

2. Apparatus as claimed in claim 1, in which one of the pressing jaws is mounted only for rotation and the other is mounted for rotation and is provided with means for moving the same axially toward and from the first named jaw and including means for applying pressure to said axially movable jaw.

3. Apparatus as claimed in claim 1, in which one of the pressing jaws has means for moving the same axially toward and from the other and also including an axially movable punch for producing the bore of the hub, said punch ex tending axially through the axially movable pressing jaw.

4. Apparatus as claimed in claim 1, in which one of the pressing jaws has means for moving the same axially toward and from the other and also including an axially movable and non-rotatable drilling spindle for working on the bore of the hub, said spindle extending axially through the axially movable pressing jaw.

5. Apparatus as claimed in claim 1, in which one of the pressing jaws has means for moving the same axially toward and from the other and also including an axially movable and nonrotatable drilling spindle for working on the bore of the hub, said spindle extending axially through the axially movable pressing jaw and a milling spindle for working on the end face of the huband attached to the drilling spindle.

6. A combined pressing and rolling mill for finishing preformed blanks of wheels, rollers,

pulleys and the like, comprising a pair of pressing jaws having means whereby they are mounted for rotation and means whereby one jaw is movable toward and from the other, said jaws being shaped on their opposing sides to correspond to the shape of the work piece, pressure rollers arranged laterally of the pressing, jaws formed to correspond to the shape of the rim of the wheel or other work piece, means whereby said pressure rollers are adapted to be moved toward .andfrom the pressing jaws to impart the required shape to the rim of the work piece and means for finishing the shape of the hub of the.

work piece and for boring the same, said means extending through the centers of. the pressing jaws and being arranged to operate during the same working cycle as the pressing jaws and the pressure rollers and comprising axially movable punches each extending through the center of one of the jaws.

7. A combined pressing and rolling mill for finishing preformed blanks of wheels, rollers, pulleys and the like, comprising a pair of pressing jaws having means whereby they are mounted for rotation and means whereby one jaw is movable toward and from the other, said jaws being shaped on. their opposing sides to correspond to the shape of the work piece; pressure rollers arranged laterally of the pressing jaws, formed to correspond to the shape of the rim of the wheel or other work piece, means whereby said pressure rollers are adapted to be moved toward and from the pressing jaw to impart the required shapeto the rim of the work piece and a plurality of, means for finishing the shape of the hub of the work piece and for boring the same arranged for operating simultaneously, alternately, or successively, at will, said means extending through the centers of the pressing jaws and being arranged to operate during the same working cycleas the pressing jaws and the pressure rollers.

JOSEF ROSENBAUM. 

